What actions does Octavius take at the end of the play?

Brutus and his men have lost the war. After Brutus's suicide, he and Antony talk about honor. They recognize that Brutus acted out of what he believed was right. Octavius plans to bury all the dead men, even Brutus, as honorable soldiers. He also pledges to grant the soldiers who fought against them amnesty. This is a noble gesture on his part. He and Antony then set about to spread the news of their victory.

Octavius is now the new Caesar and things are restored to order and peace-at least for the time being.